From: sto.mar@...
Date: 2013-08-05T07:13:41+09:00
Subject: Re: Regex to extract numbers

Am 05.08.2013 00:09, schrieb Joel Pearson:
> Renato Co wrote in post #1117719:
>> I have an array of links like this
>>
>>
> /ENETCONSULTA/frmGerenciaPaginaFRE.aspx?NumeroSequencialDocumento=5335&CodigoTipoInstituicao=2
>>
>>
>> I need to extract only the 5335, how could this be done using regular
>> expressions?
> 
> If you do insist on using a Regular Expression, this should do it for 
> that specific link:
> 
> s = 
> '/ENETCONSULTA/frmGerenciaPaginaFRE.aspx?NumeroSequencialDocumento=5335&CodigoTipoInstituicao=2'
> 
> s.match( /NumeroSequencialDocumento=(\d+)/ )[1]

or, using a named capture group:

  /NumeroSequencialDocumento=(?<number>\d+)/ =~ s
  number  # => "5335"

Regards,
Marcus


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